Identify studies concluding causation w/correlational data

Causal statement cannot be made as a result of correlational studies. Although this is true, many causal statements you are bombarded with every day are due to correlational studies.

Find five statements making cause and effect claims even though they are based on data collected in correlational studies. For example, one Web site might claim insomnia leads to depression. After you read the support behind this statement, you might discover the study is based on survey questions correlating the number of hours slept with depressive feelings.

After finding the five correlation-based statements and summarizing the methodological problems with the causal claims, state one other variable possibly responsible for the apparent link between two variables of interest. For example, it might be insomniacs have progressively worse social interactions, and that may, in fact, be the main cause of depression. Without experimental testing, this guess is as good as any.

Submit all of your statements along with the possible third variables.
Presented five statements making cause and effect claims while they are based on data collected in correlational studies.
Summarized the methodological problems with the causal claims of all five statements